G law-hammer



(No Model.)

. 2 Sheets--Sheet 1. W. H. & P. A. BURGESS.

CLAW HAMMER.

No. 524,539. Patented Aug. 14,1894.

Jiiofneg.

(No Model.) 2 Sheets-Sheet 2.

No. 524,539. Patented Aug. 14, 1894.

W. H. & P. A. BURGESS. CLAW HAMMER;

fll'inesses: Invenior; Wave/64% am fl w m fla fitarneg.

- mer embodying our invention.

UNITED STATES PATENT OFFICE.

. WILLARD H. BURGESS AND PERRY A. BURGESS, OF STEAMBOAT SPRINGS,

' COLORADO.

CLAW-HAMMER.

SPECIFICATION forming part of Letters Patent No. 524,539, dated August14, 1894.

Application filed August 24, 1393. Serial No. 488. (N m lments inClaw-Hammers, of which the following is a full, clear, and exactspecification.

Our invention relates to improvements in claw hammers, and 1ts objectsare to provide improved means whereby a suitable device may be extendedfrom the hammer head forming a fulcrum whereby additional leverage isobtained for. pulling nails, tacks, 850.

Our invention is described in detail hereunder, reference being had tothe accompanylng drawings, in which similar letters of referenceindicate corresponding parts in the several figures.

Figure 1 is a perspective view of the ham- Fig. 2 is a detall plan viewof the device forming a movable fulcrum. Fig. 3 is a side elevation of amodified form of fulcrum device, and connect- 1ng parts. Fig. 4 is atransverse section of the claws, taken on line w-x of Fig. 1, showingclearly the beveled sharp edges of the face thereof: Fig. 5 is a sideelevation of a modified form of hammer and fulcrum device. Fig. 6 1s adetail view of a modified form of fulcrum device. Fig. 7 is a frontelevation of the hammer head showing a modified form of support for thefulcrum device.

Referring to the drawings, A indicates the hammer handle having securedthereto the head B, said head being provided with a movable fulcrumdevice O, and beveled edges D..

In Fig. 1 the handle socket in the hammer head is seen to be somewhatextended, and is provided with an opening B, parallel with the handle,through which opening the movable fulcrum device 0 works. Holes a-areformed in the side of the opening B to receive the end of a pin 19,which pin is intended to hold the fulcrum deviceO in any desiredposition. The fulcrum device which we prefer to employ is formed in twoparts a! b,the part a" being loosely connected with the part b by meansof a socket joint 0. A spring 0 is secured at one end to one of saidparts, and its free end bears against the other part, for the purpose ofspreading said parts at 19 away from each other and enabling the pin 1)to engage in anyone of the holes a. The tension of the spring will serveto retain the device 0 in the position at which it is set, by pressingthe parts a 1) against the inner walls of the opening B in the hammerhead, the pin 1) being in engagement with one of the holes 0.. By simplypressing the parts a, b together the device 0 is rendered free to slidewithin the opening 13' and can be thrust outward to any desired extentto form a suitable fulcrum, so that long nails may be easily withdrawnby means of the leverage which is obtained, and said nails can thus bedrawn out straight, thereby rendering them fit for service again. Pinsor other suitable extensions 01 are secured at or near. the outer endsof the parts a b to provide a purchase for the fingers to facilitate themovement of the device C, said projections d also acting as stops toprevent said device from being entirely withdrawn from the hammer headin a forward direction. The device 0 is also provided at its fulcrum endwith a flanged head a to prevent said device from being withdrawn fromthe hammer head in the reverse direction.

As will be seen by the drawings, the V- shaped edges of the claws in ourimproved hammer are provided with a flange D beveled outwardly, wherebysaid edges are adapted to out under the head of a countersunk nail, andthereby secure a good purchase previous to withdrawing such nail. I

In Fig. 3 we have shown a modified form of actuating device for thefulcrum device F. In said modification a guide E is provided upon thehammer handle, said guide E having a slot 0, recesses 0 being formedineither side of said slot for engagement with the pin 01. In thisinstance the fulcrum device F may be formed from a solid bar or piece,and the tension spring g is here shown secured upon one side of thedevice F, and bearing against the inside of the guide E. Arack d isformed within the guide Efahd a corresponding rack f is formed upon thedevice F upon the opposite side to that hearing the tension spring. Theracks f and d are adapted to engage and hold the device F in a desiredposition for use as a fulcrum, and the position of the device F can bealtered by raising the teeth f from engagement with the teeth d by meansof the pin d which projects from either side of said device F and iscapable of movement within the slot When the fulcrum F is adjusted to asuitable position the ends of the pin (2 rest wlthin one of the recesses0 at either slde of the guide E, and thereby constituting an additionalsupport to said fulcrum de- Vice 0.

In Figs. 5 and 6 will be seen another and simpler form of fulcrumdevice, and the means for retaining said device in its desiredpositlOIl. The device G is, in this instance, formed from a single pieceof metal, fork-shaped, the prongs h i being of a spring-like nature, andadapted to be compressed together by the fingers. Grooves j are formedwithin the opening B said grooves being adapted to receive the flangesis upon said fulcrum device, said groove or flange providing a smoothrunning bearing for the fulcrum device. One of the prongs h has upon itssurface notches or proect1ons Z, said notches Z being adapted to enterand become engaged within the recess or opening m formed in the side ofthe hammer render the fulcrum device F movable within the opening B, norto the means for retaining said device F in any position suitable foruse as a fulcrum, for, as will be readily understood, a variety ofconstructions may be employed for the same purpose, and themodifications which we have shown in Figs. 3, 4, and 5 are-but some ofvarious modified forms which we have produced in our experiments; and,while we consider the form of fulcrum device shown in Fig. 1 to be themost practical.

We desire to claim particularly as follows:

In a claw hammer an auxiliary socket formed through the head thereof, afulcrum device passed through said opening, a flange at one end of saidfulcrum device to prevent its withdrawal from said opening; said fulcrumdevice formed in two parts connected together at one end by asocketjoint, the free ends of said fulcrum device having projections upontheir outer surfaces, also to prevent the withdrawal of said device fromthe opening; said parts also bearing a pin, holes within the wall of theopening in the hammer head to receive said pin, and aspringbetween saidparts of the fulcru m'device, substantially as and for the purpose setforth.

In testimony that we claim the foregoing we have hereunto set our handsthis 27th day of July, 1893.

WILLARD H. BURGESS. PERRY A. BURGESS.

Witnesses:

F. A. METOALF, R. E. CLARK.

